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Displaying 62 contributions out of 62
A model of high energy protons for low altitude (below 800 km) mission specification has been developed at ONERA. This model is based on the long duration NOAA measurement series. We used only the highest omnidirectional channel from SEM on board the old NOAA satellites, and the corresponding channel from SEM-2 on board the new NOAA ones, as the other channels are contamina ... More
Presented by Mrs. Angélica SICARD-PIET on 7 Mar 2017 at 14:20
The well known AP8 and AE8 NASA models are commonly used in the industry to specify the radiation belt environment. Unfortunately, there are some limitations in the use of these models, first due to the covered energy range, but also because in some regions of space, there are discrepancies between the predicted average values and the measurements. Therefore, a new model has been developped at ONE ... More
Presented by Mrs. Angélica SICARD-PIET on 7 Mar 2017 at 14:40
In flight feedback data are collected such as displacement damage doses, ionizing doses, cumulated SEUs, and DSNU on Star Tracker on board various space vehicles and are compared to predictions performed with (1) proton measurements performed with spectrometers data on board the same spacecraft if any and (2) protons spectrum predicted by the legacy AP8min model and the AP9 and OPAL models. When a ... More
Presented by Dr. Sebastien BOURDARIE on 7 Mar 2017 at 15:50
Presented by Mr. Robert ECOFFET, Mrs. Françoise BEZERRA on 7 Mar 2017 at 12:00
Different types of shielding geometry are considered as input for a TNID sector analysis calculation: sphere and slab. TNID calculations using the Reverse Monte Carlo method have also been performed. Analysis of the results allows to make recommendations on the choice of the calculation method based on the complexity of the radiation model.
Presented by Mr. Pierre POURROUQUET on 8 Mar 2017 at 09:50
This presentation provides a snapshot of the AO8191 TRP activity which involves the comprehensive radiative characterization of 6 components (4 SRAMs, 1 SoC and 1 FPGA) using heavy-ions, high- and low-energy protons and electrons. The test setups and methodologies will be presented as well as initial heavy-ion test results. In one SRAM component, an unusual SEFI failure mode was identified and was ... More
Presented by Mr. Adrian EVANS on 9 Mar 2017 at 12:40
An Ensemble Kalman filter combined with the Salammbô 3D tool has been used to produce a re-analysis data base of the electron radiation belt from September 2012 to end of 2015. RBSP-A&B/MagEis data, GOES-13/MagEd and GOES-13/SEM data were ingested by the system. So far only omni-directional fluxes have been considered in this study. The time resolution of the re-analysis data base is 10 minutes a ... More
Presented by Dr. Sebastien BOURDARIE on 7 Mar 2017 at 16:25
Presented by Mr. Thierry NUNS on 8 Mar 2017 at 14:10
Presented by Dr. Heikki KETTUNEN, Mr. Laurent STANDAERT, Dr. Wojtek HAJDAS on 9 Mar 2017 at 10:20
A brief overwiew of on-going actions, an example of harmonized R&D.
Presented by Mr. Robert ECOFFET on 8 Mar 2017 at 10:15
This study is based on the work of Kay et al. [2012][2013] and investigates the effects of preliminary multiple write cycles on the radiation hardness of NAND Flash memories. This work includes the experimental characterization of 2 references under TID and heavy ions, and the test data post-treatment and analysis.
Presented by Mr. Nicolas SUKHASEUM on 8 Mar 2017 at 12:25
Presented by Dr. Christian SCHWARZ on 7 Mar 2017 at 10:30
The existence of high energy (E>1MeV) electrons in the inner zone is always a debate issue. We tried with several clues to solve the problem they arise. First, using NOAA measurements and in particular a proton channel contaminated by E>1.2MeV electrons, the slot filling was studied over solar cycles. Then the found profiles were compared to the CRRES and SAMPEX measurements. Finally, using a simp ... More
Presented by Dr. Vincent MAGET on 7 Mar 2017 at 12:50
AE9/AP9 radiation belt models were developed to substitute the commonly used AE8/AP8 models for trapped particles. This study explored the impact of the integration of these new models into environment specifications. Multiple mission types were considered such as LEO, MEO and electrical orbital rising trajectories. Dose and displacement damage calculations were performed using FASTRAD® and apply ... More
Presented by Dr. Athina VAROTSOU on 7 Mar 2017 at 15:30
Trapped proton fluxes are anisotropic at Low Earth Orbits (LEO). However, this characteristic is not taken into account in the radiation environment specification of space missions. The goal of the study was to show if such a consideration has an impact on the radiation analysis results. The proton anisotropy was considered and doses were calculated at component level taking into account the orien ... More
Presented by Dr. Athina VAROTSOU on 7 Mar 2017 at 14:00
Different types of detectors are used for the TID calculation based on the RMC method: points and volumes. The impact of their location, their dimensions and their shape has been studied taking into account different geometric models with an increasing complexity. The impact depends on the particle environment and on whether the detector is located inside or at the surface of the spacecraft.
Presented by Mr. Pierre POURROUQUET on 8 Mar 2017 at 09:30
For the definition of the space radiation environment, missions are usually defined with a standard number of orbits and number of points per orbit. It has been shown that the modification of these parameters can induce differences on the results. The purpose of this study was to determine the impact of the definition of the mission parameters on the fluxes of particles but also on the calculated ... More
Presented by Dr. Athina VAROTSOU on 7 Mar 2017 at 16:45
Presented by Dr. Hualin XIAO on 6 Mar 2017 at 12:40
Presented by Ali ZADEH on 8 Mar 2017 at 14:00
Presented by Dr. Veronique FERLET-CAVROIS on 6 Mar 2017 at 09:45
Presented by Mrs. Françoise BEZERRA on 8 Mar 2017 at 10:10
In this presentation, we review current work on SET measurement including on-chip and off-chip techniques. We present test results for SET measurements using the SPA laser at the CNES, Toulouse and the TPA laser at NRL, Washington. Results are presented for SETs in elementary transistors, logic gates as as for complex digital circuits
Presented by Mr. Adrian EVANS on 9 Mar 2017 at 12:20
Presented by Tore André BEKKENG on 6 Mar 2017 at 12:20
Presented by Dr. Pier Giorgio RANCOITA on 7 Mar 2017 at 10:10
Upgrade of Open Data Interface (ODI) D. Heynderickx, DH Consultancy, Leuven, Belgium P. Wintoft, Solar Analytics, SE H. Evans, ESA/ESTEC, Noordwijk, The Netherlands ODI is a MySQL database framework developed for streamlined ingestion and storage of time series of spacecraft and ground based data. The latest upgrades of the framework consist of: - functionality for ingesting netCDF data files - ... More
Presented by Dr. Daniel HEYNDERICKX on 6 Mar 2017 at 15:00
OMERE is a freely distributed tool allowing to perform radiation environment and effects calculations (TID, TNID, SEE) for space missions. OMERE is developed by the engineering department of TRAD with the support from the CNES and it is used by engineers from the private and public sector all over world. The new developments and new interface of the latest OMERE version will be presented.
Presented by Dr. Athina VAROTSOU on 7 Mar 2017 at 17:05
Presented by Dr. Alessandro BRUNO on 6 Mar 2017 at 16:00
The aim of this study is to investigate the proton direct ionization sensitivity of integrated circuits. This work includes the development of a calculation methodology to assess the direct ionization contribution to the proton SEE rate, the experimental characterization of a 45nm CMOS SRAM-based FPGA under low energy proton, as well as the space environment and calculation parameter impact on the ... More
Presented by Mr. Nicolas SUKHASEUM on 8 Mar 2017 at 10:35
Presented by Dr. Michael WIND on 9 Mar 2017 at 09:20
The evolution in the microelectronic field leads to the presence of high Z materials close to the sensitive volume of electronic components. Through interactions with highly energetic protons, as is the case in irradiation facilities or in space, recoil atoms can reach these sensitive volumes with high LET. Based on worst case hypotheses, this study showed the presence of high LET recoil particles ... More
Presented by Mr. Pierre POURROUQUET on 8 Mar 2017 at 11:45
15 years ago, CNES and ONERA developed a low mass and low power solid state detector named ICARE-NG. This monitor has been flying on the SAC-D and JASON 2 satellites and is currently monitoring the Earth radiation belts onboard JASON-3 spacecraft. We review here the benefits of such a detector (much simpler than a scientific one) providing multi-spacecraft measurements in Low Earth Orbit. In parti ... More
Presented by Dr. Vincent MAGET on 7 Mar 2017 at 12:15
Presented by Dr. Pierre GARCIA, Dr. Athina VAROTSOU
Presented by Mr. Juha-Pekka LUNTAMA on 7 Mar 2017 at 09:30
Presented by Dr. Pierre GARCIA on 9 Mar 2017 at 11:30
Presented by Dr. Paulo GORDO on 6 Mar 2017 at 11:40
Presented by Dr. Bendy TANIOS on 8 Mar 2017 at 17:00
TRADCARE (Tool for RADiation Constraints Analysis and Reliability Enhancement) is a tool allowing to predict SEE sensitivity of ASIC during its design phase. It is composed of interchangeable modules for each calculation step, starting from the whole IC design up to the SEE reliability prediction. Application cases will be presented.
Presented by Mr. Pierre POURROUQUET on 8 Mar 2017 at 11:20
This contribution will focus on recent prospective actions on « new » test facilities, e.g. 6-20 MeV electrons at Carcassonne Hopital, France, CHARM (CERN), new ion cocktail at UCL, etc…
Presented by Mrs. Françoise BEZERRA on 8 Mar 2017 at 12:45
Presented by Mr. françois-xavier GUERRE on 8 Mar 2017 at 16:40
New ESA Projects of Radiation Belt Modelling D. Heynderickx, DH Consultancy, Leuven, Belgium F. Lei, RadMod Research, Camberley, UK I. Sandberg, IASA & SPARC, Athens, Greece I. Daglis, IASA, Athens, Greece M. Cyamukungu, CSR/UCL, Belgium E. de Donder, BIRA-IASB, Belgium P. Truscott, Kallisto Consultancy, Farnborough, UK H. Evans, P. Jiggens, D. Rodgers, ESA/ESTEC, Noordwijk, The Netherlands Two ... More
Presented by Dr. Daniel HEYNDERICKX on 6 Mar 2017 at 17:00
Status on the various actions on this subject and latest results
Presented by Mrs. Françoise BEZERRA, Ms. Natalie CHATRY on 8 Mar 2017 at 12:05